CN212803093U - Pulling type net electric workover rig - Google Patents
Pulling type net electric workover rig Download PDFInfo
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- CN212803093U CN212803093U CN202021465469.XU CN202021465469U CN212803093U CN 212803093 U CN212803093 U CN 212803093U CN 202021465469 U CN202021465469 U CN 202021465469U CN 212803093 U CN212803093 U CN 212803093U
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Abstract
本发明涉及钻修装备领域一种拖挂式网电修井机及作业方法。本发明含牵引车、拖挂车、空压机组、绞车电机、油泵机组、井架系统、绞车、控制柜、电容柜、保护柜。拖挂车承载其它装备，可与牵引车分离，由蓄电池驱动独立作业；空压机组与油泵机组提供气、液压动力；绞车电机直驱绞车提放管柱；超级电容缓冲功率波动并回收管柱势能。修井功率小于网电功率时超级电容充电，反之补偿网电功率；管柱下放时绞车电机反转发电，势能转化为电能得以回收；传动系统取消分动箱、角箱、爬坡链条箱及其传动轴等大部件，系统大为简化。本发明将超级电容与蓄电池应用于修井机作业与移运，有效解决了网电利用难题，并提出一种轻便、节能、环保的拖挂式网电修井机。
The invention relates to a trailer-mounted grid power workover rig and an operation method in the field of drilling and workover equipment. The invention includes a tractor, a trailer, an air compressor unit, a winch motor, an oil pump unit, a derrick system, a winch, a control cabinet, a capacitor cabinet, and a protection cabinet. The trailer carries other equipment, can be separated from the tractor, and is driven by the battery to operate independently; the air compressor unit and the oil pump unit provide pneumatic and hydraulic power; the winch motor directly drives the winch to lift and unload the pipe string; the super capacitor buffers power fluctuations and recovers the pipe string potential energy. When the workover power is less than the grid power, the super capacitor is charged, and on the contrary, the grid power is compensated; when the pipe string is lowered, the winch motor is reversed to generate electricity, and the potential energy is converted into electric energy for recovery; the transmission system cancels the transfer case, corner box, climbing chain box and its transmission. Shaft and other large components, the system is greatly simplified. The invention applies the super capacitor and the storage battery to the operation and movement of the workover rig, effectively solves the problem of grid power utilization, and proposes a portable, energy-saving and environmentally friendly trailer-mounted grid power workover rig.
Description
Technical Field
The invention relates to the technical field of drilling equipment, in particular to a pulling type net power workover rig.
Background
In the technical field of well drilling and repairing equipment, a well repairing machine generally adopts a diesel engine and a gearbox combination to provide power, and the power is respectively transmitted to actuating mechanisms such as a winch, a rotary table, a front axle and a rear axle of a main locomotive through a transfer case. The transmission form has low energy conversion rate, large fuel oil consumption, serious noise and waste gas pollution, complex transmission system and high maintenance cost. The well site power grid in China covers all oil extraction areas, the electric workover rig replaces the traditional diesel drive workover rig, but a well site transformer is difficult to give consideration to both workover operation and oil extraction operation power, and the transformer replacement capacity expansion cost is high, so that the electric workover rig mostly adopts a hybrid drive mode at the present stage, namely, an energy storage device, a motor and other equipment are added on the basis of the traditional diesel drive workover rig, so that the cost and the weight of the whole vehicle are greatly improved by the hybrid workover rig, the transmission structure is more complex, and the problem of grid power utilization is solved and becomes a key technology for popularization and application of the electric workover rig. The invention utilizes the characteristics of the super capacitor and the storage battery to respectively apply the super capacitor and the storage battery to the operation and the moving of the workover rig, solves the problem of grid power utilization, and provides the portable, energy-saving and environment-friendly pull-type grid power workover rig on the basis.
Disclosure of Invention
The invention discloses a pull-type net power workover rig in the field of drilling and repairing equipment. The invention comprises a tractor, a trailer, an air compressor unit, a winch motor, an oil pump unit, a derrick system, a winch, a capacitor cabinet, an electric control cabinet and a protection cabinet.
The tractor comprises a storage battery and a traction motor, provides moving power for the system, can be separated from the trailer and is driven by the storage battery to operate independently; the storage battery has high energy density, low power density, long charging and discharging duration and slow absorbed or released power, and is suitable for the moving and transportation of the tractor with gentle power change;
the trailer is used for bearing and fixing other equipment, is provided with a hydraulic support leg and a frame and is pulled by the tractor to move;
the air compressor unit provides air pressure power for an air supply control system and an air control brake;
the liquid pump unit provides hydraulic power for a liquid control system, a hydraulic support leg and a lifting hydraulic cylinder;
the winch motor uses a permanent magnet synchronous motor with low speed and large torque characteristic, can directly drive the winch to lift and put the pipe column, does not need a speed reduction device, and can realize stepless speed regulation;
the winch is directly driven by the permanent magnet motor, a speed reduction device is not arranged, and the transmission efficiency is high;
the derrick system comprises a rear support, a derrick, a lifting hydraulic cylinder and a front support, and is horizontally erected at the upper part of the trailer without interfering with other modules during moving;
a super capacitor and an inverter are installed in the capacitor cabinet; the super capacitor can buffer power fluctuation and recover the potential energy of the pipe column, and the stored electric energy can supplement the power of the grid after being output by the inverter;
the super capacitor has high power density, can release large power in a short time and buffer sudden load power change; the short-time large load energy generated when the pipe column is lowered can be recovered, and the method is suitable for buffering and recovering the energy with large short-period power fluctuation;
a control system and a frequency converter are arranged in the electric control cabinet; well site network power is subjected to frequency conversion by a frequency converter and then supplies power to motors of all equipment;
the protection cabinet is provided with double grounding devices, and well site power grid is connected into the electric control cabinet after passing through the protection cabinet, so that complete isolation of industrial power grid and the whole set of equipment is ensured.
Preferably, the tractor is powered by the storage battery, is directly driven by the traction motor, and can be separated from the trailer to independently operate;
preferably, the network electric workover rig is a pure electric workover rig without the components of a transfer case, a corner case, a rotary table transmission case, a climbing chain case, a transmission shaft and the like of a conventional diesel drive workover rig or a hybrid workover rig, and the transmission structure is greatly simplified;
preferably, the grid power workover rig respectively applies the super capacitor and the storage battery to workover rig operation and movement by utilizing the difference between the power density and the energy density, so that the grid power utilization problem is solved;
preferably, the network power workover rig provides an operation method of the network power workover rig according to the energy use characteristics of different working conditions on the basis of solving the difficult problem of network power utilization;
preferably, under the standby working condition of the grid power workover rig, the grid power charges the storage battery and the super capacitor, so that power is indirectly provided for the transfer and operation; meanwhile, the network power is directly used for providing power for each device after being subjected to frequency conversion by the frequency converter;
preferably, each equipment motor of the grid electric workover rig uses a low-speed high-torque permanent magnet synchronous motor, a speed reducer is not needed, and stepless speed regulation can be realized;
preferably, under the working condition of well workover, when the well workover power is lower than the grid power, the grid power continues to charge the super capacitor; on the contrary, if the power required by heavy load is large when the pipe column is lifted, the super capacitor outputs electric energy through the inverter to compensate the grid power;
preferably, under the working condition of well repair, the network electric workover rig drives the winch motor to reversely rotate to generate electricity when the pipe column is lowered, and the potential energy of the pipe column is converted into electric energy which is recovered and stored in the super capacitor.
The technical scheme of the embodiment of the invention has the following advantages:
the invention provides a pulling type net electric workover rig. The tractor can be separated from the trailer and driven by the storage battery to operate independently; the tractor is powered by the storage battery and is directly driven by the traction motor; the invention relates to a network electric workover rig, wherein the moving and operating power is from an industrial power network; the invention is a pure electric workover rig, has no components such as transfer case, corner case, rotary table transmission case, climbing chain case and transmission shaft of the conventional diesel drive workover rig or hybrid workover rig, and the transmission system is greatly simplified; according to the invention, each motor uses a low-speed large-torque permanent magnet synchronous motor, direct drive operation is carried out without a speed reducer, and the transmission efficiency is high. The invention provides a portable, energy-saving and environment-friendly pulling type network power workover rig which applies a super capacitor and a storage battery to the operation and the moving of the workover rig, effectively solves the problem of network power utilization and is beneficial to popularization and application of the network power workover rig.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a specific example of a trailed type electric network workover rig according to an embodiment 1 of the present invention;
reference numerals: 1-a tractor, 11-a storage battery, 12-a traction motor, 2-a trailer, 21-a hydraulic support leg, 22-a frame, 3-an air compressor unit, 4-a winch motor, 5-a liquid pump unit, 6-a derrick system, 61-a rear support, 62-a derrick, 63-a lifting hydraulic cylinder, 64-a front support, 7-a winch, 8-a capacitor cabinet, 81-a super capacitor, 82-an inverter, 9-an electric control cabinet, 91-a control system, 92-a frequency converter and 10-a protection cabinet.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In describing the present invention, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises" and/or "comprising," when used in this specification, are intended to specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and for simplicity in description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; the two elements can be directly connected, indirectly connected through an intermediate medium, or communicated with each other inside; either a wireless or a wired connection. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
The embodiment provides a pulling type net electric workover rig. As shown in fig. 1, the characteristics include: the device comprises a tractor 1, a trailer 2, an air compressor unit 3, a winch motor 4, a liquid pump unit 5, a derrick system 6, a winch 7, a capacitor box 8, an electric control cabinet 9 and a protection cabinet 10.
The tractor 1 comprises a storage battery 11 and a traction motor 12, provides moving power for the system, can be separated from the trailer 2, and is driven by the storage battery 11 to operate independently; the storage battery 11 has high energy density, low power density, long charging and discharging duration and slow absorption and release power, and is suitable for moving and transporting a tractor with gentle power change;
the trailer 2 carries and fixes other equipment, including a hydraulic leg 21 and a frame 22, and is pulled by the tractor 1 to move;
the air compressor unit 3 provides air pressure power for an air supply control system and an air control brake;
the liquid pump unit 5 provides hydraulic power for the hydraulic support legs 21 and the lifting hydraulic cylinder 63;
the winch motor 4 adopts a permanent magnet synchronous motor with low speed and large torque characteristic, can directly drive the winch 7 to lift and put the tubular column, does not need a speed reduction device, and can realize stepless speed regulation;
the winch 7 is directly driven by a permanent magnet motor, a speed reducing device is not needed, and the transmission efficiency is high;
the derrick 62 system comprises a rear bracket 61, a derrick 62, a lifting hydraulic cylinder 63 and a front bracket 64, and is horizontally arranged at the upper part of the trailer 2 during moving without interfering with other modules;
a super capacitor 81 and an inverter 82 are installed in the capacitor box 8; the super capacitor 81 can buffer power fluctuation and recover the potential energy of the pipe column, and the stored electric energy is output through the inverter 82;
the super capacitor 81 has high power density, can release large power in a short time and buffer sudden load power change; meanwhile, the short-time large-load energy generated when the pipe column is lowered can be recovered, and the device is suitable for buffering and recovering the energy with large short-period power fluctuation.
A control system 91 and a frequency converter 92 are arranged in the electric control cabinet 9; well site network power is subjected to frequency conversion by a frequency converter 92, and then power is supplied to motors of all equipment;
the protection cabinet 10 is provided with a double grounding device, and well site network power is connected to the electric control cabinet 9 after passing through the protection cabinet 10, so that the industrial power grid is completely isolated from the whole set of equipment.
Preferably, the tractor 1 is powered by the storage battery 11, is directly driven by a traction motor, and can be separated from the trailer 2 to independently work;
preferably, the network electric workover rig is a pure electric workover rig without the components of a transfer case, a corner case, a rotary table transmission case, a climbing chain case, a transmission shaft and the like of a conventional diesel drive workover rig or a hybrid workover rig, and the transmission structure is greatly simplified;
preferably, the grid power workover rig respectively applies the super capacitor and the storage battery to workover rig operation and movement by utilizing the difference between the power density and the energy density, so that the grid power utilization problem is solved;
preferably, under the standby working condition of the grid power workover rig, the grid power charges the storage battery 11 and the super capacitor 81, so that power is indirectly provided for the movement and operation; meanwhile, the grid power is subjected to frequency conversion through the frequency converter 82, and power is directly provided for each device;
preferably, each equipment motor of the grid electric workover rig uses a low-speed high-torque permanent magnet synchronous motor, a speed reducer is not needed, and stepless speed regulation can be realized;
preferably, under the well repairing working condition, when the well repairing power is smaller than the grid power, the grid power continues to charge the super capacitor 81; on the contrary, if the power required by heavy load is large during the lifting operation of the tubular column, the super capacitor 81 outputs electric energy to compensate the grid power through the inverter 82;
preferably, under the working condition of well repair, the network electric workover rig drives the winch motor 4 to reversely rotate to generate electricity when the pipe column is lowered, and the potential energy of the pipe column is converted into electric energy which is recovered and stored in the super capacitor 81.
The tractor 1 of the towed net electric workover rig can be separated from the towed vehicle 2 and driven by the storage battery 11 to carry out independent operation; the tractor 1 is powered by a storage battery 11 and is directly driven by a traction motor 12; the invention relates to a network electric workover rig, wherein the moving and operating power is from an industrial power network; the invention is a pure electric workover rig, has no components such as a transfer case, a corner case, a rotary table transmission case, a climbing chain case, a transmission shaft and the like of a conventional diesel drive workover rig or a hybrid workover rig, and a transmission system is very simple; according to the invention, each motor uses a low-speed large-torque permanent magnet synchronous motor, direct drive operation is carried out without a speed reducer, and the transmission efficiency is high. The super capacitor 81 and the storage battery 11 are applied to the operation and the moving of the workover rig, so that the device is light, energy-saving and environment-friendly, effectively solves the grid power utilization problem, and is favorable for popularization and application of the grid power workover rig.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (8)
1. The utility model provides a pull-type net electricity workover rig which characterized in that includes: the system comprises a tractor (1), a trailer (2), an air compressor unit (3), a winch motor (4), a liquid pump unit (5), a derrick system (6), a winch (7), a capacitor cabinet (8), an electric control cabinet (9) and a protection cabinet (10);
the tractor (1) comprises a storage battery (11) and a traction motor (12) and provides moving power for the system, and the tractor (1) can be separated from the trailer (2) and driven by the storage battery (11) to operate independently;
the trailer (2) is used for bearing and fixing other equipment and is provided with a hydraulic leg (21) and a frame (22);
the air compressor unit (3) provides air pressure power, and an air supply control system and an air control brake are used;
the liquid pump unit (5) provides hydraulic power for the hydraulic support leg (21) and the lifting hydraulic cylinder (63);
the winch motor (4) uses a permanent magnet synchronous motor with low speed and large torque characteristics, can directly drive the winch (7) to lift and put the tubular column, does not need a speed reduction device, and can realize stepless speed regulation;
the winch (7) is directly driven by the winch motor (4), a speed reducing device is not needed, and the transmission efficiency is high;
the derrick system (6) comprises a rear support (61), a derrick (62), a lifting hydraulic cylinder (63) and a front support (64), and is horizontally erected at the upper part of the trailer (2) during moving without interfering with other modules;
a super capacitor (81) and an inverter (82) are installed in the capacitor cabinet (8); the super capacitor (81) can buffer power fluctuation and recover the potential energy of the pipe column, and the stored electric energy can compensate the power of the grid after being output by the inverter (82);
a control system (91) and a frequency converter (92) are arranged in the electric control cabinet (9); the well site network power is directly used for providing power for motors of all equipment after being subjected to frequency conversion by a frequency converter (92);
the protection cabinet (10) is provided with double grounding devices, and well site power grid is connected into the electric control cabinet (9) after passing through the protection cabinet (10), so that the industrial power grid is completely isolated from the whole set of equipment.
2. The trailed net electric workover rig according to claim 1, wherein the tractor (1) can be separated from the trailer (2) and driven by the storage battery (11) to work independently; the tractor (1) is powered by a storage battery (11) and is directly driven by a traction motor (12).
3. The pull-type net electric workover rig according to claim 1, wherein the net electric workover rig is a pure electric workover rig without components such as a transfer case, a corner case, a rotary table transmission case, a climbing chain case and a transmission shaft thereof of a conventional diesel drive workover rig or a hybrid workover rig.
4. The pulling type net power workover rig according to claim 1, wherein under a standby condition, the net power charges a storage battery (11) and a super capacitor (81) through a protection cabinet (10) and an electric control cabinet (9).
5. The trailed net power workover rig according to claim 1, wherein the net power is directly powered by the motors of the devices after being converted by the frequency converter (92).
6. The pulling type net electric workover rig according to claim 1, wherein motors of equipment belonging to the workover rig all use low-speed high-torque permanent magnet synchronous motors, speed reducers are not needed, and stepless speed regulation can be realized.
7. The pulling type net power workover rig according to claim 1, wherein under the workover condition, when the workover power is smaller than the net power, the net power continues to charge the super capacitor (81); when the well repairing power is larger than the grid power, the super capacitor (81) outputs electric energy to compensate the grid power through the inverter (82).
8. The pulling type net power workover rig according to claim 1, wherein under the workover condition, the winch motor (4) is driven to rotate reversely to generate electricity when the pipe column is lowered, and the potential energy of the pipe column is converted into electric energy which is recovered and stored in the super capacitor (81).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021465469.XU CN212803093U (en) | 2020-07-22 | 2020-07-22 | Pulling type net electric workover rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021465469.XU CN212803093U (en) | 2020-07-22 | 2020-07-22 | Pulling type net electric workover rig |
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| Publication Number | Publication Date |
|---|---|
| CN212803093U true CN212803093U (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021465469.XU Expired - Fee Related CN212803093U (en) | 2020-07-22 | 2020-07-22 | Pulling type net electric workover rig |
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| CN (1) | CN212803093U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997536A (en) * | 2020-07-22 | 2020-11-27 | 中国石油大学(华东) | Pulling type net power workover rig and operation method |
| CN114352214A (en) * | 2022-01-06 | 2022-04-15 | 茹国琼 | Energy storage type direct-drive electric workover rig without guy rope net |
| US11955782B1 (en) | 2022-11-01 | 2024-04-09 | Typhon Technology Solutions (U.S.), Llc | System and method for fracturing of underground formations using electric grid power |
-
2020
- 2020-07-22 CN CN202021465469.XU patent/CN212803093U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997536A (en) * | 2020-07-22 | 2020-11-27 | 中国石油大学(华东) | Pulling type net power workover rig and operation method |
| CN114352214A (en) * | 2022-01-06 | 2022-04-15 | 茹国琼 | Energy storage type direct-drive electric workover rig without guy rope net |
| US11955782B1 (en) | 2022-11-01 | 2024-04-09 | Typhon Technology Solutions (U.S.), Llc | System and method for fracturing of underground formations using electric grid power |
| US12444910B2 (en) | 2022-11-01 | 2025-10-14 | Typhon Technology Solutions (U.S.), Llc | Method for accessing electric grids to power fracturing operations |
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